# Jemena

> Jemena is an Australian energy infrastructure owner-operator headquartered in Melbourne, owned by SGSP (Australia) Assets (60% State Grid Corporation of China, 40% Singapore Power). It runs the Jemena Electricity Network in north and north-west Melbourne, the Jemena Gas Network across New South Wales, the Eastern, Queensland and Northern Gas Pipelines, the Colongra gas storage facility, and holds 50% of ActewAGL's ACT distribution networks. It is a poles-and-pipes distributor, not a retailer.

Jemena operates exactly one public API, and it is not a data API. It is the JEN CSIP-AUS Utility Server — an IEEE 2030.5 (Smart Energy Profile 2.0) control plane that discovers, monitors and remotely curtails rooftop solar and other distributed energy resources on the Jemena Victorian distribution network, stood up to satisfy the Victorian Government's emergency backstop mandate. Access is gated behind Jemena-issued mutual-TLS certificates, IP allow-listing and a conformance-testing programme. There is no self-serve signup and no consumer or open-data API.

Generated by the API Evangelist enrichment pipeline on 2026-07-27 from public Jemena documents and live probes. Provider does not publish an llms.txt (https://www.jemena.com.au/llms.txt returned HTTP 404 on 2026-07-27).

## APIs

- [Jemena CSIP-AUS Utility Server (IEEE 2030.5)](https://www.jemena.com.au/electricity/solar-connections/victoria-emergency-backstop-mechanism/emergency-backstop-mechanism-documents/): Production base URI https://sep2.aws.jemena.com.au:8443/sep2, staging https://sep2-e2e.aws.jemena.com.au:8444/sep2. XML over mutually-authenticated TLS. Client-polled; no webhooks, no subscription/notification support.

## Documentation

- [JEN OEM Technical Guide Handbook v1.0 (PDF, 12 June 2025)](https://www.jemena.com.au/siteassets/asset-folder/documents/electricity/embedded-generation/jen-oem-technical-guide_handbook_v1.0.1-final.pdf): The de facto API reference — resource tree, sample requests and responses, onboarding, PKI, poll/post rates, error FAQ.
- [Embedded Generation Emergency Backstop Requirements (PDF, 1 December 2025)](https://www.jemena.com.au/siteassets/asset-folder/documents/electricity/embedded-generation/embedded-generation-emergency-backstop-requirements_public_01-12-2025.pdf): The regulatory frame, Victorian Order in Council citations, export limits, CSIP-AUS Approved Listing policy.
- [Installer CSIP-AUS Commissioning Test Procedure (PDF, 22 May 2024)](https://www.jemena.com.au/siteassets/asset-folder/documents/electricity/embedded-generation/installer-csip-aus-commissioning-test-procedure_public_22052024.pdf)
- [JEN Embedded Networks Emergency Backstop Scenarios (PDF)](https://www.jemena.com.au/contentassets/8a62a168071f46b2ab5c542ed621c530/jen-embedded-networks-emergency-backstop-scenarios.pdf)
- [Emergency Backstop Guideline above 30 kVA — DOE over SCADA and generator monitoring meter methods (PDF)](https://www.jemena.com.au/siteassets/asset-folder/documents/electricity/embedded-generation/emebdded-generation-emergency-backstop-guideline-above-30kva---doe-over-scada-and-gemerator-monitoring-meter-methods-jen-ele-999-gl-el-007.pdf)
- [Victoria emergency backstop mechanism (overview)](https://www.jemena.com.au/electricity/solar-connections/victoria-emergency-backstop-mechanism/)
- [Jemena approved list of inverters / CSIP-AUS Approved Listing](https://www.jemena.com.au/electricity/solar-and-other-technologies/jemena-approved-list-of-inverters/)

## Standards

- [CSIP-AUS (SA TS 5573)](https://www.csipaus.org/about): The Australian profile of IEEE 2030.5 that Jemena implements.
- [IEEE 2030.5 / CSIP-AUS XSD schemas](https://csipaus.org/ns/): The machine-readable schemas. Maintained by third parties, not by Jemena.
- [EPRI IEEE 2030.5 client sep.xsd](https://github.com/epri-dev/IEEE-2030.5-Client/blob/master/sep.xsd)
- AS/NZS 4777.2:2020 — inverter standard; Clean Energy Council listing is a precondition for connection.

## Artifacts in this repo

- [apis.yml](https://raw.githubusercontent.com/api-evangelist/jemena/refs/heads/main/apis.yml): APIs.json index for Jemena.
- [review.yml](https://raw.githubusercontent.com/api-evangelist/jemena/refs/heads/main/review.yml): API Evangelist review — why the Consumer Data Right does not reach Jemena, and what it operates instead.
- [authentication/jemena-authentication.yml](https://raw.githubusercontent.com/api-evangelist/jemena/refs/heads/main/authentication/jemena-authentication.yml): Mutual TLS + IEEE 2030.5 PKI, LFDI/SFDI identity, registration, onboarding path.
- [conventions/jemena-conventions.yml](https://raw.githubusercontent.com/api-evangelist/jemena/refs/heads/main/conventions/jemena-conventions.yml): Media types, epoch timestamps, s/l pagination, poll and post rates, control acknowledgement, versioning.
- [errors/jemena-error-codes.yml](https://raw.githubusercontent.com/api-evangelist/jemena/refs/heads/main/errors/jemena-error-codes.yml): The documented error contract — 400, 403, 404, 415, 429 and their published causes and remedies.
- [sandbox/jemena-sandbox.yml](https://raw.githubusercontent.com/api-evangelist/jemena/refs/heads/main/sandbox/jemena-sandbox.yml): Staging environment, test certificate issuance, staging registration PIN, the graded conformance test sequence.
- [data-model/jemena-data-model.yml](https://raw.githubusercontent.com/api-evangelist/jemena/refs/heads/main/data-model/jemena-data-model.yml): Entity graph derived from the documented IEEE 2030.5 resource tree.
- [conformance/jemena-conformance.yml](https://raw.githubusercontent.com/api-evangelist/jemena/refs/heads/main/conformance/jemena-conformance.yml): What Jemena conforms to, and what it explicitly does not.
- [lifecycle/jemena-lifecycle.yml](https://raw.githubusercontent.com/api-evangelist/jemena/refs/heads/main/lifecycle/jemena-lifecycle.yml): Document versions, environments, deprecation posture, roadmap signals.
- [security/jemena-domain-security.yml](https://raw.githubusercontent.com/api-evangelist/jemena/refs/heads/main/security/jemena-domain-security.yml): TLS, HSTS, DNSSEC, CAA, SPF, DMARC probe results.
- [well-known/jemena-well-known.yml](https://raw.githubusercontent.com/api-evangelist/jemena/refs/heads/main/well-known/jemena-well-known.yml): Full /.well-known/ probe matrix — all misses, recorded as evidence.

## What does not exist

- No OpenAPI, Swagger, WADL, GraphQL, gRPC or AsyncAPI definition is published by Jemena. Probed 2026-07-27 across www.jemena.com.au, api.jemena.com.au and sep2.aws.jemena.com.au:8443 — all negative.
- No MCP server, SDK, client library, CLI or Postman collection.
- No developer portal. jemena.com.au/gas/developers and /electricity/trade-developers/ are for PROPERTY developers and trades, not software developers.
- No Consumer Data Right API. Jemena is not a designated CDR energy data holder; the CDR Register energy brand list (84 brands, checked 2026-07-27) contains only retailers.
- No open or market data API. No data., opendata., developer. or docs. subdomain exists. The outage map at poweroutages.jemena.com.au is geo-restricted to Australia. The "Daily Gas Data" product is a paid annual EMAIL subscription arranged via rfs@jemena.com.au.
- No webhooks or events. Jemena does not implement the IEEE 2030.5 subscription/notification function set (POST /ntfy); clients poll at 300 second intervals.
- electricityoutlook.jemena.com.au, the former customer smart-meter portal, returns NXDOMAIN and is decommissioned.

## Contact

- API / backstop onboarding: emergency.backstop@jemena.com.au
- Support: https://www.jemena.com.au/help-support/
- Website: https://www.jemena.com.au/